n | a(n) |
---|---|
3 | 1 |
4 | 40 |
5 | 1210 |
6 | 33880 |
7 | 925771 |
8 | 25095280 |
9 | 678468820 |
10 | 18326727760 |
11 | 494894285941 |
12 | 13362799477720 |
13 | 360801469802830 |
14 | 9741692640081640 |
15 | 263026177881648511 |
16 | 7101711092201899360 |
17 | 191746238094034963240 |
18 | 5177148775980218655520 |
19 | 139783020078437440101481 |
[1,40,1210,33880,925771,25095280,678468820, 18326727760,494894285941,13362799477720, 360801469802830,9741692640081640, 263026177881648511,7101711092201899360, 191746238094034963240,5177148775980218655520, 139783020078437440101481] |